Navigation engineering simulation channel dredging device and simulation method

Abstract

The invention provides a navigation engineering simulation channel dredging device and a simulation method, and belongs to the technical field of channel dredging. A navigation engineering simulation channel dredging device comprises a shell and further comprises a channel simulation box, the channel simulation box is arranged in the shell and used for simulating a channel to be dredged, a sludge layer is laid at the bottom of the channel simulation box, and a telescopic pipe is arranged between the channel simulation box and the inner wall of the shell; the leveling assembly is arranged in the shell and is used for leveling a dredged sludge layer in the channel simulation box; the dredging assembly is arranged on the shell and used for dredging the sludge layer; the shell is provided with a moving mechanism used for driving the dredging assembly to move. By eliminating the interference of the water body on the sludge, the situation that the sludge is turbid in the water body and needs to stand for a long time is avoided, the core problems of low efficiency and non-visual data in a traditional simulation experiment are solved, and a high-fidelity and high-efficiency experiment tool is provided for channel dredging engineering.

Description

Technical Field

[0001] The present invention relates to the technical field of waterway dredging, and in particular to a waterway dredging simulation device and a simulation method for navigation engineering. Background Art

[0002] Navigation engineering is a comprehensive engineering field focused on waterway construction, maintenance, and management. It encompasses the planning, construction, and upkeep of infrastructure such as ports, waterways, water conservancy projects, and environmental protection. Its infrastructure includes waterway dredging, port engineering, the design and construction of navigation structures (such as locks), underwater pipeline laying, and shoreline regulation. Broadly speaking, waterway dredging encompasses reef and beach blasting using underwater blasting. Mechanical construction widely utilizes various dredgers, and sometimes land-based construction machinery such as shovels. To better plan dredging operations, dredging simulations are often performed using simulated waterway models.

[0003] In the prior art, the invention patent with patent application number CN202410750822.5 discloses a device, system and method for simulating dredging of dredged sand by a dredger, which utilizes a dredging mechanism to dredge the sand, and drives the movement of the dredging mechanism through a moving mechanism to simulate the dredging process of a trailing suction dredger. The measuring mechanism collects terrain data after the simulated dredging to provide data support for experimental theoretical research, and calculates indicators such as the mean square error and deviation of the dredged terrain based on the terrain distribution law. However, it cannot accurately and intuitively observe the state distribution of the terrain after dredging, such as raised ridges, secondary excavations or raking by a rake, by only using the calculation method. In addition, in the specific operation process, after each dredging of the sand, it is necessary to wait for the sand in the water to sink before observing it or measuring the terrain elevation. The waiting time is long, which reduces work efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a navigation engineering simulation channel dredging device and simulation method.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A simulated channel dredging device for navigation engineering, comprising a housing and: A channel simulation box is provided in the housing and is used to simulate the channel to be dredged. A silt layer is laid on the bottom of the channel simulation box, and a telescopic tube is provided between the channel simulation box and the inner wall of the housing; A leveling assembly is provided in the housing and is used to level the dredged silt layer in the channel simulation box; and a dredging assembly disposed on the housing and configured to dredge the silt layer; Wherein, a moving mechanism for driving the displacement of the dredging component is provided on the shell.

[0006] Preferably, the leveling assembly includes a rotating rod rotatably connected to both sides of the shell, an eccentric rod fixed between the two rotating rods, a swing rod rotatably connected to the outside of the eccentric rod, and a first motor fixed on the outside of the shell and used to drive the rotating rod to rotate, and the end of the swing rod away from the eccentric rod is movably connected to the bottom of the channel simulation box, and the bottom of the channel simulation box is provided with a roller slidably connected to the inner wall of the shell through a support.

[0007] Preferably, the channel simulation box includes a U-shaped bottom plate movably connected to the eccentric rod, a first side plate fixed on both sides of the U-shaped bottom plate, and a second side plate arranged perpendicular to the first side plate and symmetrically arranged on the outside of the U-shaped bottom plate, the second side plate includes a lower plate body connected to the U-shaped bottom plate and an upper plate body rotatably connected to the lower plate body through a pin shaft.

[0008] Preferably, the leveling assembly also includes a support plate fixed to the inner wall of the shell, a first screw rod rotatably connected to the support plate, a first sleeve threadedly connected to the first screw rod, a connecting rod rotatably connected to the first sleeve, and a slider movably connected to one end of the connecting rod away from the first sleeve, and the slider is connected to the upper plate body.

[0009] Preferably, a sliding groove is provided on the upper plate body, and the sliding block is slidably connected in the sliding groove.

[0010] Preferably, a secondary bevel gear is fixedly provided at the bottom of the first screw rod, a main bevel gear meshing with the secondary bevel gear is provided on the rotating rod, a protective shell is fixedly provided on the inner wall of the housing, and the secondary bevel gear and the main bevel gear are both rotatably connected in the protective shell.

[0011] Preferably, an ear plate is fixed on the U-shaped bottom plate, and an elastic telescopic rod is provided between the ear plate and the bottom of the lower plate body. When the upper plate body and the lower plate body are placed vertically, the elastic telescopic rod begins to be compressed.

[0012] Preferably, the moving mechanism includes a fixed plate fixed on the outside of the shell, a second screw rod rotatably connected to the fixed plate, a second sleeve threadedly connected to the second screw rod, a moving frame fixed to the second sleeve, and a second motor fixed on the fixed plate and used to drive the second screw rod to rotate. The moving mechanism also includes a first electric push rod fixed on the moving frame and a slide seat arranged at the telescopic end of the first electric push rod, and the slide seat is slidably connected to the crossbeam of the moving frame.

[0013] Preferably, the dredging assembly includes a mounting seat fixedly connected to the slide, two second electric push rods fixed to the mounting seat, a rake connected to the telescopic end of one of the second electric push rods, and a rake suction head connected to the telescopic end of the other second electric push rod.

[0014] The present invention also discloses a method for simulating channel dredging for navigation engineering, which is performed by applying the aforementioned device for simulating channel dredging for navigation engineering, and includes the following steps: S1: Initial preparation phase‌ Add a certain amount of silt into the channel simulation box to form a flat silt layer; The moving mechanism is started, and the second motor drives the second screw to rotate, thereby driving the dredging component to move to the starting position; S2: Dredging Simulation Operation‌ Control the second electric push rod to make the trailing suction head penetrate into the silt layer, and the moving mechanism drives the trailing suction head to move along the channel simulation box to simulate the dredging process; After dredging, the silt layer formed raised ridges and ditches, and the staff measured the topographic data in real time; S3: Secondary work and comparative analysis‌ The moving mechanism is reset to control the suction head and rake leveler to perform secondary excavation and raking operations on the ditch; Use distance measuring instruments to record the differences in terrain after the two operations and visually compare the dredging effects; S4: Fast leveling and depth adjustment‌ Start the leveling assembly, the first motor drives the rotating rod to rotate, and the eccentric rod and the swing rod make the channel simulation box swing back and forth, and the silt is quickly spread out; The rotating rod synchronously drives the main bevel gear and the auxiliary bevel gear to engage, and the first screw drives the first sleeve to move downward, pushing the upper plate to deflect relative to the lower plate until the upper plate and the lower plate are placed vertically and the upper plate can no longer be turned over. As the first sleeve continues to move downward, the upper and lower plates move downward as a whole, and the elastic telescopic rod is compressed until the upper plate flattens the silt, facilitating subsequent experiments at different dredging depths. S5: Repeat the experiment Adjust the dredging depth of the suction head according to demand, repeat the dredging, measurement and leveling process, and observe the differences in terrain distribution under different dredging depth conditions due to the secondary excavation of the suction head and the raking operation of the leveler.

[0015] It can be seen from the above technical solutions that the present invention has the following beneficial effects: 1. In this invention, by eliminating the interference of water on silt, the silt is prevented from being turbid in the water for a long time and the terrain after dredging is directly observed. Compared with the traditional observation after static sedimentation (which takes several hours), the efficiency is improved, and the core problems of low efficiency and non-intuitive data in traditional simulation experiments are solved, providing a high-fidelity and high-efficiency experimental tool for waterway dredging projects.

[0016] 2. In the present invention, by controlling the operation of the first motor, the output shaft of the first motor drives the rotating rod to rotate, the rotating rod drives the eccentric rod to rotate, and the eccentric rod drives the swing rod to swing, so that the swing rod pushes the channel simulation box to move back and forth in the shell, and the telescopic tube automatically retracts and contracts. When the channel simulation box moves back and forth, the silt dredged by the dredging component shakes in the channel simulation box, so that the silt shakes and spreads quickly in the channel simulation box, and the leveling component is used to quickly restore the silt layer to its initial state. Comparative experiments of different dredging methods (such as the difference in effects between a suction head and a leveler) can be carried out multiple times to improve the simulation efficiency.

[0017] 3. In the present invention, after the upper plate body is flipped and placed vertically with the lower plate body, the upper plate body cannot continue to rotate. As the first sleeve continues to move downward, the downward pressure of the connecting rod on the upper plate body is transmitted to the lower plate body. The lower plate body compresses the elastic telescopic rod, causing the lower plate body to move downward relative to the U-shaped bottom plate until the upper plate body flattens the silt in the channel simulation box, further improving the leveling effect of the silt layer. The flattening process can accelerate the rearrangement of silt particles, simulating the sedimentation and consolidation phenomenon of sediment in the natural environment, more realistically reflecting the silt layer at the bottom of the channel, and improving the accuracy of the simulation results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Front view of Figure 3 It is a structural schematic diagram of the housing of the present invention; Figure 4 It is a structural schematic diagram of the waterway simulation box of the present invention; Figure 5 This is a schematic structural diagram of the upper plate of the present invention after being flipped over; Figure 6 For the present invention Figure 5 Schematic diagram of the cross-section structure; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure of the middle part A; Figure 8 Schematic diagram of the cross-sectional structure of the waterway simulation box of the present invention; Figure 9 For the present invention Figure 8 A schematic diagram of the enlarged structure of the middle B part; Figure 10 Schematic diagram of the external structure of the first screw rod of the present invention; Figure 11 Schematic diagram of the external structure of the eccentric rod of the present invention.

[0019] In the figure: 1. Shell; 101. Telescopic tube; 102. Protective shell; 2. Channel simulation box; 201. U-shaped bottom plate; 202. First side plate; 203. Second side plate; 2031. Lower plate; 2032. Upper plate; 3. Leveling assembly; 301. Rotating rod; 3011. Main bevel gear; 302. Eccentric rod; 303. Swing rod; 304. First motor; 4. Dredging assembly; 401. Mounting seat; 402. Second electric push rod; 40 3. Rake leveler; 404. Rake suction head; 5. Silt layer; 6. Support plate; 601. First screw; 6011. Second bevel gear; 602. First sleeve; 603. Connecting rod; 604. Slider; 6041. Slide; 7. Ear plate; 701. Elastic telescopic rod; 8. Fixed plate; 801. Second screw; 802. Second sleeve; 803. Moving frame; 804. Second motor; 805. First electric push rod; 806. Slide; 9. Roller. DETAILED DESCRIPTION

[0020] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8 A navigation engineering simulation channel dredging device includes a housing 1, a channel simulation box 2, a leveling component 3, and a dredging component 4; the channel simulation box 2 is arranged in the housing 1, and is used to simulate the channel to be dredged. The channel simulation box 2 includes a U-shaped bottom plate 201 movably connected to the eccentric rod 302, a first side plate 202 fixed on both sides of the U-shaped bottom plate 201, and a second side plate 203 arranged perpendicular to the first side plate 202 and symmetrically arranged on the outside of the U-shaped bottom plate 201. The second side plate 203 includes a U-shaped bottom plate 201 movably connected to the eccentric rod 302, a first side plate 202 fixed on both sides of the U-shaped bottom plate 201, and a second side plate 203 arranged perpendicular to the first side plate 202 and symmetrically arranged on the outside of the U-shaped bottom plate 201. The lower plate 2031 is connected to the shaped bottom plate 201, and the upper plate 2032 is rotatably connected to the lower plate 2031 via a pin shaft. The bottom of the channel simulation box 2 is paved with a silt layer 5, and a telescopic tube 101 is provided between the channel simulation box 2 and the inner wall of the shell 1; the leveling assembly 3 is provided in the shell 1 and is used to level the dredged silt layer 5 in the channel simulation box 2; the dredging assembly 4 is provided on the shell 1 and is used to dredge the silt layer 5; wherein, the shell 1 is provided with a moving mechanism for driving the displacement of the dredging assembly 4; Specifically, silt is filled into the channel simulation box 2, and a silt layer 5 is formed at the bottom of the channel simulation box 2 to simulate the silt layer 5 at the bottom of the channel. There is no need to pour water into the channel simulation box 2. The eccentric swing mode of the leveling component 3 is started to evenly distribute the silt layer 5. The second side plate 203 is moved down and compacted, and the angle of the upper plate 2032 is adjusted to be perpendicular to the lower plate 2031. The initial state is locked, and the mobile mechanism drives the dredging component 4 to move along the channel simulation box 2 to complete the first dredging and form the ridge terrain. The depth, width and other parameters of the ridge after dredging are measured and the data is recorded. Then, different dredging equipment is switched to perform a second operation on the same area to compare the terrain differences such as flatness of different dredging methods. , the range of sediment disturbance; then the leveling component 3 is controlled to work, so that the silt particles are redistributed and flattened, and the dredging experiment is repeated to verify the effect under different parameters; the silt caused by the secondary excavation of the suction head 404 and the rake leveler 403 will cause turbidity in the water body. By placing only silt in the channel simulation box 2 to simulate the underwater topography of the dredged river, the interference conditions of silt turbidity in the water body are removed, and the turbidity of the water body caused by dredging, which requires a long time of standing before observing the situation after dredging, is avoided, thereby ensuring the efficiency and simulation effect of channel dredging simulation, solving the core problems of low efficiency and non-intuitive data in traditional simulation experiments, and providing a high-fidelity and high-efficiency experimental tool for channel dredging projects.

[0022] Reference Figure 1 、 Figure 4 、 Figure 8 、 Figure 9 and Figure 11 As a preferred technical solution of this embodiment, the leveling assembly 3 includes a rotating rod 301 rotatably connected to both sides of the shell 1, an eccentric rod 302 fixed between the two rotating rods 301, a swing rod 303 rotatably connected to the outside of the eccentric rod 302, and a first motor 304 fixed on the outside of the shell 1 and used to drive the rotating rod 301 to rotate. The two rotating rods 301 are rotatably connected to both sides of the shell 1 and are directly driven by the first motor 304 to achieve synchronous rotation. The end of the swing rod 303 away from the eccentric rod 302 is movably connected to the bottom of the channel simulation box 2 for converting the rotational motion of the eccentric rod 302 into a linear reciprocating motion of the channel simulation box 2. The bottom of the channel simulation box 2 is provided with a roller 9 slidably connected to the inner wall of the shell 1 through a support. The roller 9 can support the channel simulation box 2, improve the movement stability of the channel simulation box 2 during reciprocating swing, and ensure smooth swinging; Specifically, the first motor 304 is started, the output shaft drives the rotating rod 301 to rotate, and the eccentric rod 302 drives the swing rod 303 to move in a plane, pushing the channel simulation box 2 to swing back and forth in a straight line. The swing of the channel simulation box 2 makes the silt particles evenly distributed due to inertia, eliminating the ridges after dredging, and facilitating the rapid implementation of the next round of dredging simulation experiments. The experimental time is much less than the waiting time of traditional silt settling in the water body, so that the silt layer 5 can quickly return to its initial state, and multiple comparative experiments of different dredging methods can be quickly carried out, such as the difference in effects between the suction head 404 and the rake 403, thereby improving the simulation efficiency.

[0023] Reference Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 10 As a preferred technical solution of this embodiment, the leveling assembly 3 also includes a support plate 6 fixed to the inner wall of the shell 1, a first screw rod 601 rotatably connected to the support plate 6, a first sleeve 602 threadedly connected to the first screw rod 601, a connecting rod 603 rotatably connected to the first sleeve 602, and a slider 604 movably connected to the end of the connecting rod 603 away from the first sleeve 602. The support plate 6 is rigidly fixed to the inner wall of the shell 1 and serves as a rotation support point for the first screw rod 601. The slider 604 is connected to the upper plate 2032. A slide groove 6041 is provided on the upper plate 2032. The slider 604 is slidably connected to the slide groove 6041. The slider 604 is made of polytetrafluoroethylene to ensure its service life. Furthermore, an ear plate 7 is fixed on the U-shaped bottom plate 201, and an elastic telescopic rod 701 is provided between the ear plate 7 and the bottom of the lower plate body 2031. When the upper plate body 2032 and the lower plate body 2031 are placed vertically, the elastic telescopic rod 701 begins to be compressed; Specifically, when the first screw rod 601 rotates, the first sleeve 602 moves axially along the first screw rod 601, and the first sleeve 602 pushes the upper plate 2032 to deflect relative to the lower plate 2031 through the connecting rod 603 and the slider 604 until the upper plate 2032 and the lower plate 2031 are placed vertically, and the upper plate 2032 can no longer rotate. At this time, the upper plate 2032 has not yet pressed down the silt in the channel simulation box 2. As the first sleeve 602 continues to move downward, the connecting rod 60 3. The downward pressure of the upper plate 2032 is transmitted to the lower plate 2031. The lower plate 2031 compresses the elastic telescopic rod 701, causing the lower plate 2031 to move downward relative to the U-shaped bottom plate 201 until the upper plate 2032 flattens the silt in the channel simulation box 2; this further improves the leveling effect of the silt layer 5, and the flattening process can accelerate the rearrangement of silt particles, simulating the sedimentation and consolidation phenomenon of sediment in the natural environment, more realistically reflecting the actual silt layer at the bottom of the channel, and improving the accuracy of the simulation results.

[0024] Reference Figure 8 and Figure 9 As a preferred technical solution of this embodiment, a secondary bevel gear 6011 is fixedly provided at the bottom of the first screw rod 601, a main bevel gear 3011 meshing with the secondary bevel gear 6011 is provided on the rotating rod 301, and a protective shell 102 is fixedly provided on the inner wall of the housing 1. The secondary bevel gear 6011 and the main bevel gear 3011 are both rotatably connected in the protective shell 102, and the protective shell 102 can protect the transmission of the bevel gears; Specifically, after the first motor 304 is started, the rotating rod 301 rotates, and the rotating rod 301 transmits power to the secondary bevel gear 6011 through the main bevel gear 3011, driving the first screw 601 to rotate synchronously. When the channel simulation box 2 swings through eccentric swing, the bevel gear transmission maintains continuous engagement, realizing the synchronous operation of swing leveling and mechanical compaction, thereby realizing the leveling and compaction work of the silt layer 5.

[0025] Reference Figure 1 、 Figure 2 and Figure 3 As a preferred technical solution of this embodiment, the moving mechanism includes a fixed plate 8 fixed to the outside of the housing 1, a second screw rod 801 rotatably connected to the fixed plate 8, a second sleeve 802 threadedly connected to the second screw rod 801, a moving frame 803 fixed to the second sleeve 802, and a second motor 804 fixed to the fixed plate 8 and used to drive the second screw rod 801 to rotate. The moving mechanism also includes a first electric push rod 805 fixed to the moving frame 803 and a slide 806 provided at the telescopic end of the first electric push rod 805. The slide 806 is slidably connected to the crossbeam of the moving frame 803. Furthermore, the dredging assembly 4 includes a mounting base 401 fixedly connected to the slide 806, two second electric push rods 402 fixedly mounted on the mounting base 401, a rake 403 connected to the telescopic end of one of the second electric push rods 402, and a dragging suction head 404 connected to the telescopic end of the other second electric push rod 402. The dragging suction head 404 is connected to a pump body via a dragging suction pipe, so that the dragging suction head 404 can perform a dragging suction operation. This is prior art. Specifically, when it is necessary to adjust the dredging working position of the dredging component 4, the second motor 804 can be controlled to operate, and the output shaft of the second motor 804 drives the second screw 801 to rotate, so that the second sleeve 802 drives the movable frame 803 to move along the length direction of the channel simulation box 2. When it is necessary to adjust the dredging component 4 to move along the width direction of the channel simulation box 2, the first electric push rod 805 is controlled to operate, so that the telescopic end of the first electric push rod 805 pushes or pulls the slide 806 to move on the crossbeam of the movable frame 803, thereby realizing the displacement of the dredging component 4; when the suction head 404 is needed to perform dredging or secondary excavation operations, the second electric push rod 402 connected thereto is controlled to be stretched, so that the suction head 404 contacts and works with the silt layer 5; when the rake 403 is needed to perform rake leveling operations, the second electric push rod 402 connected thereto is controlled to be stretched, so that the rake 403 performs rake leveling operations on the dredged silt layer 5.

[0026] The present invention also discloses a method for simulating channel dredging for navigation engineering, which is performed by applying the aforementioned device for simulating channel dredging for navigation engineering, and includes the following steps: S1: Initial preparation phase‌ A fixed amount of silt is added into the channel simulation box 2 to form a flat silt layer 5; Start the moving mechanism, drive the second screw rod 801 to rotate through the second motor 804, and drive the dredging component 4 to move to the starting position; S2: Dredging Simulation Operation‌ The second electric push rod 402 is controlled to move the trailing suction head 404 into the silt layer 5, and the moving mechanism drives the trailing suction head 404 to move along the channel simulation box 2 to simulate the dredging process; After dredging, the silt layer 5 formed raised ridges, and the staff measured the topographic data in real time; S3: Secondary work and comparative analysis‌ The moving mechanism is reset, and the suction head 404 and the rake leveler 403 are controlled to perform secondary excavation and raking operations on the ditch respectively; Use distance measuring instruments to record the differences in terrain after the two operations and visually compare the dredging effects; S4: Fast leveling and depth adjustment‌ Start the leveling assembly 3, the first motor 304 drives the rotating rod 301 to rotate, and the eccentric rod 302 and the swing rod 303 cause the channel simulation box 2 to rock back and forth, and the silt is quickly spread out; The rotating rod 301 synchronously drives the main bevel gear 3011 to mesh with the secondary bevel gear 6011, and the first screw rod 601 drives the first sleeve 602 to move downward, pushing the upper plate 2032 to deflect relative to the lower plate 2031 until the upper plate 2032 and the lower plate 2031 are placed vertically and the upper plate 2032 can no longer flip. As the first sleeve 602 continues to move downward, the upper plate 2032 and the lower plate 2031 move downward as a whole, and the elastic telescopic rod 701 is compressed until the upper plate 2032 flattens the silt, facilitating subsequent experiments at different dredging depths. S5: Repeat the experiment The dredging depth of the suction head 404 is adjusted according to demand, and the dredging, measuring, and leveling processes are repeated to observe the differences in terrain distribution caused by the secondary excavation of the suction head 404 and the leveling operation of the leveler 403 under different dredging depth conditions.

[0027] The above-described embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A navigation engineering simulated channel dredging device, comprising a housing (1), characterized in that: Also includes: A channel simulation box (2), the channel simulation box (2) being arranged in the housing (1) and used to simulate a channel to be dredged, a silt layer (5) being laid on the bottom of the channel simulation box (2), and a telescopic tube (101) being provided between the channel simulation box (2) and the inner wall of the housing (1); A leveling component (3), the leveling component (3) being arranged in the housing (1) and used for leveling the dredged silt layer (5) in the waterway simulation box (2); and a dredging assembly (4), which is arranged on the housing (1) and is used to dredge the silt layer (5); Wherein, a moving mechanism for driving the displacement of the dredging component (4) is provided on the housing (1).

2. A navigation engineering simulated channel dredging device according to claim 1, characterized in that: The leveling assembly (3) comprises a rotating rod (301) rotatably connected to both sides of the shell (1), an eccentric rod (302) fixed between the two rotating rods (301), a swing rod (303) rotatably connected to the outside of the eccentric rod (302), and a first motor (304) fixed on the outside of the shell (1) and used to drive the rotating rod (301) to rotate, wherein one end of the swing rod (303) away from the eccentric rod (302) is movably connected to the bottom of the channel simulation box (2), and the bottom of the channel simulation box (2) is provided with a roller (9) slidably connected to the inner wall of the shell (1) through a support.

3. A navigation engineering simulated channel dredging device according to claim 2, characterized in that: The channel simulation box (2) comprises a U-shaped bottom plate (201) movably connected to an eccentric rod (302), a first side plate (202) fixed on both sides of the U-shaped bottom plate (201), and a second side plate (203) arranged perpendicular to the first side plate (202) and symmetrically arranged on the outside of the U-shaped bottom plate (201), wherein the second side plate (203) comprises a lower plate body (2031) connected to the U-shaped bottom plate (201) and an upper plate body (2032) rotatably connected to the lower plate body (2031) via a pin shaft.

4. A navigation engineering simulated channel dredging device according to claim 3, characterized in that: The leveling assembly (3) further comprises a support plate (6) fixed to the inner wall of the housing (1), a first screw rod (601) rotatably connected to the support plate (6), a first sleeve (602) threadedly connected to the first screw rod (601), a connecting rod (603) rotatably connected to the first sleeve (602), and a slider (604) movably connected to one end of the connecting rod (603) away from the first sleeve (602), wherein the slider (604) is connected to the upper plate body (2032).

5. A navigation engineering simulated channel dredging device according to claim 4, characterized in that: A sliding groove (6041) is provided on the upper plate body (2032), and the sliding block (604) is slidably connected in the sliding groove (6041).

6. A navigation engineering simulated channel dredging device according to claim 5, characterized in that: A secondary bevel gear (6011) is fixedly provided at the bottom of the first screw rod (601), a main bevel gear (3011) meshing with the secondary bevel gear (6011) is provided on the rotating rod (301), a protective shell (102) is fixedly provided on the inner wall of the housing (1), and the secondary bevel gear (6011) and the main bevel gear (3011) are both rotatably connected in the protective shell (102).

7. A navigation engineering simulated channel dredging device according to claim 6, characterized in that: An ear plate (7) is fixedly provided on the U-shaped bottom plate (201), and an elastic telescopic rod (701) is provided between the ear plate (7) and the bottom of the lower plate body (2031). When the upper plate body (2032) and the lower plate body (2031) are placed vertically, the elastic telescopic rod (701) begins to be compressed.

8. The navigation engineering simulated channel dredging device according to claim 7, characterized in that: The moving mechanism comprises a fixed plate (8) fixed on the outside of the housing (1), a second screw rod (801) rotatably connected to the fixed plate (8), a second sleeve (802) threadedly connected to the second screw rod (801), a moving frame (803) fixed to the second sleeve (802), and a second motor (804) fixed on the fixed plate (8) and used to drive the second screw rod (801) to rotate. The moving mechanism also comprises a first electric push rod (805) fixed on the moving frame (803) and a slide seat (806) arranged at the telescopic end of the first electric push rod (805), and the slide seat (806) is slidably connected to the crossbeam of the moving frame (803).

9. A navigation engineering simulated channel dredging device according to claim 8, characterized in that: The dredging assembly (4) comprises a mounting seat (401) fixedly connected to the slide seat (806), two second electric push rods (402) fixedly arranged on the mounting seat (401), a rake (403) connected to the telescopic end of one of the second electric push rods (402), and a rake suction head (404) connected to the telescopic end of the other second electric push rod (402).

10. A method for simulating channel dredging for navigation engineering, which is performed by applying the device for simulating channel dredging for navigation engineering according to claim 9, characterized in that: The following steps are involved: S1: Initial preparation phase‌ A fixed amount of silt is added into the channel simulation box (2) to form a flat silt layer (5); The moving mechanism is started, and the second motor (804) drives the second screw rod (801) to rotate, thereby driving the dredging component (4) to move to the starting position; S2: Dredging Simulation Operation‌ Controlling the second electric push rod (402) to move the drag suction head (404) deep into the silt layer (5), and the moving mechanism drives the drag suction head (404) to move along the waterway simulation box (2) to simulate the dredging process; After dredging, the silt layer (5) forms raised ridges, and the staff measures the topographic data in real time; S3: Secondary work and comparative analysis‌ The moving mechanism is reset, and the rake suction head (404) and the rake leveler (403) are controlled to perform secondary excavation and raking operations on the ditch; Use distance measuring instruments to record the differences in terrain after the two operations and visually compare the dredging effects; S4: Fast leveling and depth adjustment‌ The leveling assembly (3) is started, and the first motor (304) drives the rotating rod (301) to rotate, and the channel simulation box (2) is caused to rock back and forth through the eccentric rod (302) and the swing rod (303), so that the silt is quickly spread out; The rotating rod (301) synchronously drives the main bevel gear (3011) and the auxiliary bevel gear (6011) to engage, and the first screw rod (601) drives the first sleeve (602) to move downward, pushing the upper plate body (2032) to deflect relative to the lower plate body (2031), until the upper plate body (2032) and the lower plate body (2031) are placed vertically and the upper plate body (2032) cannot continue to flip, as the first sleeve (602) continues to move downward, the upper plate body (2032) and the lower plate body (2031) move downward as a whole, and the elastic telescopic rod (701) is compressed until the upper plate body (2032) flattens the silt, which facilitates subsequent experiments at different dredging depths; S5: Repeat the experiment The dredging depth of the suction head (404) is adjusted according to demand, and the dredging, measuring, and leveling processes are repeated to observe the differences in terrain distribution under different dredging depth conditions of the secondary excavation of the suction head (404) and the raking and leveling operations of the leveler (403).

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